<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <script>
        let obj = {
            name:"张三",
            age:12
        };
        let value = Reflect.get(obj,'name');
        console.log(value);

        let age = Reflect.get(obj,'age');
        console.log(age);

        Reflect.set(obj,"name","李四");
        Reflect.set(obj,"age",12);
        console.log(obj);
    </script>
</body>
</html>